>> this morning what we know about the victims, including the children, an 8-year-old, an 11-year-old caught in the mayhem and the runner knocked down by the first bomb in this astonishing shot. overnight a frantic search playing out around boston. are the clues buried in the bombs? we are live on the scene with the breaking new details and the brand-new video. >> this is a special edition of "good morning america," terror at the boston marathon. live, from boston. and good morning, america. to all our viewers in the west, we're live from boston, where it's 10:00 a.m. right now. a city still in shock. the images from yesterday right there. right now, there's a live briefing happening with the governor of massachusetts, the mayor of boston, the fbi special agent in charge.